Clouds and Rains

Water VapourClouds and Rains

Water in lakes, rivers and oceans evaporates as the Sun shines down on the Earth. The air, along with the water vapour, gets warm and rises up.

CloudClouds and Rains

As it goes higher up in the sky, it cools down. The water vapour condenses to form tiny drops of water.

CloudClouds and Rains

Millions and millions of these droplets together form a cloud.

RainClouds and Rains

When the clouds pass through cooler air, they get further cooled. The water drops become bigger and heavier. When they become very heavy, they fall

to the ground as rain.

RainClouds and Rains

When the clouds pass through cooler air, they get further cooled. The water drops become bigger and heavier. When they become very heavy, they fall

to the ground as rain.

Water CycleClouds and Rains

Most of the water that falls on land goes back into the lakes, rivers and oceans. It again evaporates and comes down as rain. This goes on repeating. This repeated change of

water to water vapour, and then back to water, is called the water cycle.

HailClouds and Rains

Sometimes, on their way down, raindrops pass through very cold air and freeze to form small balls of ice. These fall to the ground as hailstones.

SnowClouds and Rains

If the clouds themselves are very cold, the water vapour condenses to form ice instead of water. The ice so formed is in the form of soft, beautiful snowflakes. They have

different shapes.

SnowflakesClouds and Rains

If the clouds themselves are very cold, the water vapour condenses to form ice instead of water. The ice so formed is in the form of soft, beautiful snowflakes. They have

different shapes.

DewClouds and Rains

On cold nights, the air near the ground cools down. The water vapour in the air condenses to form drops of water on leaves, grass or window panes.

This is called dew.

FrostClouds and Rains

On very cold nights, the dew freezes to form ice. This is called frost. Frost is observed on very cold mornings in the winter season.

FogClouds and Rains

On cold winter mornings, water vapour sometimes condenses on dust particles just above the ground. This forms clouds just above the ground. This is known as fog.

Sometimes the fog is so thick that it is difficult to see beyond a few metres.

FogClouds and Rains

Drivers of vehicles have to be very careful during fog. Pilots have difficulty taking off and landing off planes. Sometimes, airports have to be closed down because of fog.

This presentation is a result of my experiences while I was helping out my son with his school assignments and project work. I am happy to share this with other students and their parents. Hope you find this informative and useful. Thank you.

- Prashant Mahajan -

All pictures belong to their original authors, photographers.